Naadir Tharpe and Perry Ellis each scored 12 points for the Jayhawks (29-5), who racked up their 10th win in 11 games heading into the NCAA Tournament.
After settling for just a share of the regular-season conference title with the Wildcats -- breaking a streak of four straight crowns -- Kansas ran its record in tournament championship tilts to 9-0 with the one-sided triumph.
Kansas State (27-7) was led by Rodney McGruder with 18 points.
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